Functional medicine doctor addressing root causes of chronic illness in Houston.
Credentials & Training
Federally verified- Credential
- MD
- Medical school
- University of Texas Medical Branch at Galveston
- Graduated
- 1992
- Medicare specialty
- Hematology/Oncology
- Also practices
- Medical Oncology
- Group practice
- Texas Oncology PA · 1,005 clinicians
- Medicare assignment
- Accepted — bills the Medicare-approved amount as payment in full
Sourced from the CMS Doctors & Clinicians national file, last checked August 2026.
About
Dr. Charles Yen practices functional medicine in Houston with a focus on identifying and treating the underlying causes of chronic disease rather than just managing symptoms. He works with patients seeking a more detailed investigation into their health patterns, including comprehensive lab work and nutritional assessment. His approach emphasizes the body's innate healing capacity through dietary changes, supplementation, and lifestyle modification. Dr. Yen primarily works with self-pay patients and does not bill insurance.
Areas of Focus
Chronic Disease ManagementNutritional MedicineMetabolic DisordersGut Health & MicrobiomeHormone ImbalanceSupplement OptimizationFunctional Lab Testing
Specialties
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